How extreme does Aurora's weather get?

The hottest, coldest, wettest and snowiest days Aurora has recorded — the outer limits of what its weather can do, and how far they sit beyond a normal day.

Based on 50+ years of daily weather observations (1971–present), from the Aurora Water station 2 km away. Updated through June 2026 — an all-time extreme only changes when a more extreme day actually occurs, so some dates are old. That is normal, not stale data.

The four kinds of extreme

The hottest, coldest, wettest and snowiest single days Aurora has recorded — each shown against what a normal day that time of year looks like.

🔥 Hottest day

103°F Jun 25, 1988

That is about 22°F hotter than a normal June afternoon in Aurora (typical high near 81°F).

The three most extreme on record

1 103°F Jun 25, 1988

2 103°F Jul 8, 2012

3 102°F Jun 20, 1988

❄️ Coldest night

-26°F Jan 20, 1985

About 42°F colder than a normal January night in Aurora (typical low near 16°F).

The three most extreme on record

1 -26°F Jan 20, 1985

2 -25°F Jan 31, 2019

3 -24°F Jan 16, 1972

🌧️ Most rain in one day

16.91 in Jul 18, 1996

More rain in a single day than Aurora usually gets in the whole month of July (typical July total about 4.2 in).

The three most extreme on record

1 16.91 in Jul 18, 1996

2 7.12 in Aug 26, 1972

3 6.17 in Jul 2, 1983

⛄ Most snow in one day

17.0 in Feb 2, 2011

Close to a whole typical February's snow in one day (Aurora averages about 8 in across the month).

The three most extreme on record

1 17.0 in Feb 2, 2011

2 12.0 in Dec 27, 1988

3 11.0 in Jan 3, 1999

How hot and cold it gets, month by month

The shaded band is the normal range of daily temperatures for each month. The dots show the most extreme it has ever been — so you can see how far beyond a normal day the records really sit.

normal range of daily temperatureshottest ever recordedcoldest ever recorded

Aurora's record heat sits well above even a hot day for the season — June's 103°F is about 22°F beyond a normal hot afternoon. Its record cold is just as far below a normal winter night — the dots mark how rare each extreme really is.

In plain terms

In a normal year, Aurora's warmest days reach the mid-80s°F and its coldest nights drop to the mid-10s°F. But across the record it has gone as high as 103°F and as low as −26°F. A single day has delivered over 17 inches of rain or close to 17 inches of snow. Those are the outer edges worth knowing if you are moving here, planning a trip, or thinking about a house.

Methodology & sources

Temperature & precipitation — the official 1991–2020 climate normals from NOAA's U.S. Climate Normals, measured at Aurora Water (NOAA GHCN station USC00110338), about 2 km from the city centre.

How we build these numbers →

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